String fullClassName = getFullControllerClassName(controllerName, rootPackage);
try {
Class<?> clazz = Class.forName(fullClassName);
Controller controller = (Controller) clazz.newInstance();
return new ReflectInvoker(servlet, controller, actionName, params);
} catch (ClassNotFoundException e) {
throw new RuntimeException(path + "に対応する" + fullClassName
+ "クラスが見つかりません", e);